configure: Change --with[out]-qt to --with[out]-gui and add --with[out]-cli and --with[out]-daemon to support more build configurations

configure.ac

@@ -446,8 +446,18 @@ if test x$boost_sleep != xyes; then
   AC_MSG_ERROR(No working boost sleep implementation found. If on ubuntu 13.10 with libboost1.54-all-dev remove libboost.1.54-all-dev and use libboost1.53-all-dev)
 fi
 
-build_bitcoind=yes
-build_bitcoin_cli=yes
+AC_ARG_WITH([cli],
+  [AS_HELP_STRING([--with-cli],
+  [with CLI (default is yes)])],
+  [build_bitcoin_cli=$withval],
+  [build_bitcoin_cli=yes])
+
+AC_ARG_WITH([daemon],
+  [AS_HELP_STRING([--with-daemon],
+  [with daemon (default is yes)])],
+  [build_bitcoind=$withval],
+  [build_bitcoind=yes])
+
 BITCOIN_QT_INIT
 
 if test x$use_pkgconfig = xyes; then
@@ -622,7 +632,7 @@ if test x$bitcoin_enable_qt != xno; then
   if test x$use_tests = xyes; then
     BUILD_TEST_QT="test"
     if test x$bitcoin_enable_qt_test != xyes; then
-      AC_MSG_ERROR("Qt Test lib not found. Use --disable-tests or --without-qt.")
+      AC_MSG_ERROR("Qt Test lib not found. Use --disable-tests or --without-gui.")
     fi
   fi
 fi
@@ -631,6 +641,10 @@ if test x$use_tests = xyes; then
   BUILD_TEST="test"
 fi
 
+if test "x$use_tests$build_bitcoind$use_qt" = "xnonono"; then
+  AC_MSG_ERROR([No targets! Please specify at least one of: --enable-cli --enable-daemon --enable-gui or --enable-tests])
+fi
+
 AM_CONDITIONAL([TARGET_DARWIN], [test x$TARGET_OS = xdarwin])
 AM_CONDITIONAL([TARGET_WINDOWS], [test x$TARGET_OS = xwindows])
 AM_CONDITIONAL([ENABLE_WALLET],[test x$enable_wallet == xyes])

src/m4/bitcoin_qt.m4

@@ -47,9 +47,9 @@ dnl input variables are set correctly.
 dnl CAUTION: Do not use this inside of a conditional.
 AC_DEFUN([BITCOIN_QT_INIT],[
   dnl enable qt support
-  AC_ARG_WITH([qt],
-    [AS_HELP_STRING([--with-qt],
-    [with qt (no|qt4|qt5|auto. default is auto, qt4 tried first.)])],
+  AC_ARG_WITH([gui],
+    [AS_HELP_STRING([--with-gui],
+    [with GUI (no|qt4|qt5|auto. default is auto, qt4 tried first.)])],
     [
      bitcoin_qt_want_version=$withval
      if test x$bitcoin_qt_want_version = xyes; then
@@ -59,10 +59,10 @@ AC_DEFUN([BITCOIN_QT_INIT],[
     ],
     [bitcoin_qt_want_version=auto])
 
-  AC_ARG_WITH([qt-incdir],[AS_HELP_STRING([--with-qt-incdir=INC_DIR],[specify qt include path (overridden by pkgconfig)])], [qt_include_path=$withval], [])
-  AC_ARG_WITH([qt-libdir],[AS_HELP_STRING([--with-qt-libdir=LIB_DIR],[specify qt lib path (overridden by pkgconfig)])], [qt_lib_path=$withval], [])
-  AC_ARG_WITH([qt-plugindir],[AS_HELP_STRING([--with-qt-plugindir=PLUGIN_DIR],[specify qt plugin path (overridden by pkgconfig)])], [qt_plugin_path=$withval], [])
-  AC_ARG_WITH([qt-bindir],[AS_HELP_STRING([--with-qt-bindir=BIN_DIR],[specify qt bin path])], [qt_bin_path=$withval], [])
+  AC_ARG_WITH([qt-incdir],[AS_HELP_STRING([--with-gui-incdir=INC_DIR],[specify qt include path (overridden by pkgconfig)])], [qt_include_path=$withval], [])
+  AC_ARG_WITH([qt-libdir],[AS_HELP_STRING([--with-gui-libdir=LIB_DIR],[specify qt lib path (overridden by pkgconfig)])], [qt_lib_path=$withval], [])
+  AC_ARG_WITH([qt-plugindir],[AS_HELP_STRING([--with-gui-plugindir=PLUGIN_DIR],[specify qt plugin path (overridden by pkgconfig)])], [qt_plugin_path=$withval], [])
+  AC_ARG_WITH([qt-bindir],[AS_HELP_STRING([--with-gui-bindir=BIN_DIR],[specify qt bin path])], [qt_bin_path=$withval], [])
 
   AC_ARG_WITH([qtdbus],
     [AS_HELP_STRING([--with-qtdbus],
@@ -73,7 +73,7 @@ AC_DEFUN([BITCOIN_QT_INIT],[
 
 dnl Find the appropriate version of Qt libraries and includes.
 dnl Inputs: $1: Whether or not pkg-config should be used. yes|no. Default: yes.
-dnl Inputs: $2: If $1 is "yes" and --with-qt=auto, which qt version should be
+dnl Inputs: $2: If $1 is "yes" and --with-gui=auto, which qt version should be
 dnl         tried first.
 dnl Outputs: See _BITCOIN_QT_FIND_LIBS_*
 dnl Outputs: Sets variables for all qt-related tools.
@@ -113,7 +113,7 @@ AC_DEFUN([BITCOIN_QT_CONFIGURE],[
 
 
   dnl enable qt support
-  AC_MSG_CHECKING(if Qt should be enabled)
+  AC_MSG_CHECKING(if GUI should be enabled)
   BITCOIN_QT_CHECK([
     bitcoin_enable_qt=yes
     bitcoin_enable_qt_test=yes
@@ -211,7 +211,7 @@ AC_DEFUN([_BITCOIN_QT_CHECK_STATIC_PLUGINS],[
 ])
 
 dnl Internal. Find Qt libraries using pkg-config.
-dnl Inputs: bitcoin_qt_want_version (from --with-qt=). The version to check
+dnl Inputs: bitcoin_qt_want_version (from --with-gui=). The version to check
 dnl         first.
 dnl Inputs: $1: If bitcoin_qt_want_version is "auto", check for this version
 dnl         first.
@@ -265,7 +265,7 @@ AC_DEFUN([_BITCOIN_QT_FIND_LIBS_WITH_PKGCONFIG],[
 
 dnl Internal. Find Qt libraries without using pkg-config. Version is deduced
 dnl from the discovered headers.
-dnl Inputs: bitcoin_qt_want_version (from --with-qt=). The version to use.
+dnl Inputs: bitcoin_qt_want_version (from --with-gui=). The version to use.
 dnl         If "auto", the version will be discovered by _BITCOIN_QT_CHECK_QT5.
 dnl Outputs: All necessary QT_* variables are set.
 dnl Outputs: bitcoin_qt_got_major_vers is set to "4" or "5".